:root {
  --bg: #f3f4f6;
  --ink: #111827;
  --muted: #6b7280;
  --card: #ffffff;
  --line: #1f2937;
  --gray-fill: #9ca3af;
  --black-fill: #111827;

  --cell: 30px;
  --rowClue: 116px;
  --colClue: 132px;
  --clueFont: 12px;
  --clueSymbol: 16px;
  --clueChipW: 23px;
  --clueChipH: 21px;
  --rowChipW: 18px;
  --rowChipH: 24px;
  --colChipW: 24px;
  --colChipH: 18px;
  --size: 12;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body.pwa-app .image-tool {
  display: none !important;
}

body.pwa-app .puzzle-select.hidden {
  display: none !important;
}

body.pwa-app .header {
  align-items: center;
}

body.pwa-app .header h1 {
  font-size: 28px;
}

body.pwa-app .header p {
  font-weight: 750;
}

body.pwa-app:has(#gameView:not(.hidden)) {
  overflow: hidden;
}

body.pwa-app:has(#gameView:not(.hidden)) .app {
  max-width: none;
  width: 100vw;
  min-height: 100dvh;
  padding: 0 6px;
}

body.pwa-app:has(#gameView:not(.hidden)) .header {
  display: none;
}

body.pwa-app .game-view:not(.hidden) {
  min-height: 100dvh;
  max-height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  align-content: stretch;
  gap: 4px;
  overflow: hidden;
}

body.pwa-app .game-view:not(.hidden) .card {
  display: flex;
  justify-content: center;
  background: transparent;
  padding: 4px 0 0;
  border-radius: 0;
}

body.pwa-app .game-view:not(.hidden) .card > :not(.back-button) {
  display: none;
}

body.pwa-app .back-button {
  min-height: 28px;
  margin: 0;
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 12px;
}

body.pwa-app .actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin: 0 0 4px;
  padding: 0;
}

body.pwa-app .actions button {
  min-height: 30px;
  padding: 6px 8px;
  border-radius: 12px;
  font-size: 12px;
}

body.pwa-app .board-card,
body.pwa-app html[data-board-size="20"] .board-card {
  margin: 0;
  padding: 0;
  border-radius: 0;
  background: transparent;
}

body.pwa-app .scroll-area,
body.pwa-app html[data-board-size="20"] .scroll-area {
  overflow: visible;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
}

body.pwa-app .palette,
body.pwa-app html[data-board-size="20"] .palette {
  margin: 2px 0 16px;
}

body.pwa-app .puzzle-layout {
  margin: 0 auto;
}

html[data-board-size="20"] {
  --cell: clamp(18px, calc((100vw - var(--rowClue) - 34px) / var(--size)), 22px);
  --rowClue: 118px;
  --colClue: 156px;
  --clueFont: 12px;
  --clueSymbol: 16px;
  --clueChipW: 22px;
  --clueChipH: 20px;
  --rowChipW: 16px;
  --rowChipH: 22px;
  --colChipW: 22px;
  --colChipH: 16px;
}

@media (max-width: 700px) {
  :root {
    --cell: clamp(18px, calc((100vw - var(--rowClue) - 28px) / var(--size)), 30px);
    --clueFont: 11px;
    --clueChipW: 19px;
    --clueChipH: 19px;
    --rowChipW: 16px;
    --rowChipH: 21px;
    --colChipW: 21px;
    --colChipH: 16px;
  }

  html[data-board-size="20"] {
    --cell: clamp(14px, calc((100vw - var(--rowClue) - 28px) / var(--size)), 22px);
    --clueFont: 10px;
    --clueChipW: 19px;
    --clueChipH: 19px;
    --rowChipW: 15px;
    --rowChipH: 19px;
    --colChipW: 19px;
    --colChipH: 15px;
  }
}

.app {
  max-width: 780px;
  margin: 0 auto;
  padding: 16px;
}

.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

h1 {
  font-size: 34px;
  line-height: 1;
  margin: 0;
}

.header p {
  margin: 4px 0 0;
  color: var(--muted);
}

.help {
  width: 48px;
  height: 48px;
  border: 0;
  border-radius: 50%;
  background: var(--card);
  font-size: 20px;
  font-weight: 800;
}

.card, .board-card {
  background: var(--card);
  border-radius: 26px;
  padding: 20px;
}

.hidden {
  display: none !important;
}

.puzzle-select h2 {
  margin: 10px 0 14px;
  font-size: 28px;
}

.puzzle-list {
  display: grid;
  gap: 12px;
}

.daily-card {
  width: 100%;
  border: 0;
  border-radius: 24px;
  background: linear-gradient(135deg, #111827, #2563eb);
  color: #fff;
  padding: 18px;
  text-align: left;
  display: grid;
  gap: 7px;
  margin-bottom: 14px;
  box-shadow: 0 18px 45px rgba(37, 99, 235, .24);
}

.daily-card-kicker {
  color: #bfdbfe;
  font-size: 12px;
  font-weight: 950;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.daily-card-title {
  font-size: 24px;
  font-weight: 950;
}

.daily-card-desc {
  color: #e5edff;
  font-weight: 750;
}

.daily-card-status {
  width: fit-content;
  border-radius: 999px;
  background: rgba(255,255,255,.16);
  padding: 7px 11px;
  font-size: 13px;
  font-weight: 900;
}

.puzzle-item {
  width: 100%;
  border: 0;
  border-radius: 20px;
  background: var(--card);
  color: var(--ink);
  padding: 18px;
  text-align: left;
  display: grid;
  gap: 7px;
}

.puzzle-item-title {
  font-size: 22px;
  line-height: 1.1;
  font-weight: 900;
}

.puzzle-item-desc {
  color: var(--muted);
  font-weight: 650;
}

.puzzle-item-meta,
.puzzle-item-status {
  width: fit-content;
  background: #eef0f3;
  border-radius: 999px;
  padding: 7px 11px;
  font-size: 13px;
  font-weight: 850;
}

.puzzle-item-status {
  background: #e5e7eb;
}

.ad-slot[hidden] {
  display: none !important;
}

.ad-slot {
  overflow: hidden;
  min-height: 96px;
  margin: 16px 0;
  border-radius: 18px;
  background: #eef2f7;
}

.clear-ad-slot {
  margin: 0 16px 16px;
  min-height: 84px;
}

.back-button {
  border: 0;
  border-radius: 999px;
  background: #eef0f3;
  color: var(--ink);
  padding: 8px 12px;
  margin-bottom: 14px;
  font-weight: 850;
}

.image-tool {
  margin-top: 22px;
}

.image-tool h2 {
  margin: 0 0 14px;
  font-size: 28px;
}

.prompt-panel,
.tool-panel,
.tool-output {
  background: var(--card);
  border-radius: 20px;
  padding: 18px;
}

.prompt-panel {
  display: grid;
  grid-template-columns: repeat(3, minmax(130px, 1fr)) auto;
  gap: 12px;
  align-items: end;
  margin-bottom: 12px;
}

.tool-panel {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 12px;
  align-items: end;
}

.prompt-panel button,
.tool-panel button {
  min-height: 44px;
}

.prompt-panel label,
.tool-panel label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 850;
}

.range-value {
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.prompt-panel input,
.prompt-panel button,
.tool-panel input,
.tool-panel select,
.tool-panel button,
.map-result button {
  min-height: 44px;
  border: 0;
  border-radius: 14px;
  background: #eef0f3;
  color: var(--ink);
  padding: 0 12px;
  font: inherit;
  font-weight: 800;
}

#imagePromptOutput {
  width: 100%;
  min-height: 150px;
  resize: vertical;
  border: 0;
  border-radius: 20px;
  background: #fff;
  color: var(--ink);
  padding: 14px;
  margin-bottom: 12px;
  font: 13px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.tool-output {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 14px;
  margin-top: 12px;
}

.preview-stack {
  display: grid;
  gap: 10px;
}

#mapPreview,
#linePreview {
  width: 240px;
  height: 240px;
  background: #fff;
  border: 2px solid var(--line);
}

.map-result {
  display: grid;
  gap: 10px;
}

#solutionOutput {
  width: 100%;
  min-height: 240px;
  resize: vertical;
  border: 0;
  border-radius: 14px;
  background: #f9fafb;
  color: var(--ink);
  padding: 12px;
  font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.date {
  margin: 0 0 8px;
  color: var(--muted);
  font-weight: 700;
}

h2 {
  margin: 0 0 8px;
  font-size: 30px;
}

.desc {
  margin: 0 0 18px;
  color: var(--muted);
  font-weight: 600;
}

.stats {
  display: flex;
  gap: 10px;
}

.stats span {
  background: #eef0f3;
  border-radius: 999px;
  padding: 9px 14px;
  font-weight: 800;
}

.palette {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 18px;
  margin: 18px 0 10px;
}

.palette button {
  width: 44px;
  min-width: 44px;
  height: 44px;
  min-height: 44px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  position: relative;
  font-weight: 800;
}

.palette button.active {
  outline: 8px solid rgba(59, 130, 246, .12);
}

.palette button.active::after {
  content: "";
  position: absolute;
  inset: -5px;
  border: 4px solid rgba(255, 255, 255, .95);
  border-radius: 50%;
  pointer-events: none;
}

.palette-label {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.palette-eraser {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #eef3fb;
  color: #2f80ed;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 34px;
  font-weight: 350;
  line-height: 1;
}

.board-card {
  padding: 10px;
}

.scroll-area {
  overflow: auto;
  padding: 8px;
  -webkit-overflow-scrolling: touch;
}

html[data-board-size="20"] .app {
  max-width: 760px;
  padding-top: 8px;
}

html[data-board-size="20"] .header {
  margin-bottom: 8px;
}

html[data-board-size="20"] .card {
  padding: 12px 16px;
  border-radius: 20px;
}

html[data-board-size="20"] .card h2,
html[data-board-size="20"] .card p {
  margin-top: 4px;
  margin-bottom: 4px;
}

html[data-board-size="20"] .stats,
html[data-board-size="20"] .palette {
  margin-top: 8px;
  margin-bottom: 8px;
}

html[data-board-size="20"] .palette button {
  width: 42px;
  min-width: 42px;
  height: 42px;
  min-height: 42px;
}

html[data-board-size="20"] .palette svg,
html[data-board-size="20"] .palette .color-token {
  width: 30px;
  min-width: 30px;
  height: 30px;
}

html[data-board-size="20"] .board-card {
  margin-top: 18px;
  padding: 6px;
  border-radius: 18px;
}

html[data-board-size="20"] .scroll-area {
  overflow-x: auto;
  overflow-y: visible;
  padding: 4px;
}

html[data-board-size="20"] .actions {
  padding-top: 8px;
}

html[data-board-size="20"] .actions button {
  padding: 10px 8px;
  border-radius: 14px;
}

html[data-board-size="20"] .col-clue {
  gap: 1px;
}

html[data-board-size="20"] .row-clue {
  gap: 1px;
  padding-right: 3px;
}

html[data-board-size="20"] .clue-token {
  gap: 1px;
}

html[data-board-size="20"] .clue-token .color-token {
  width: var(--clueChipW);
  min-width: var(--clueChipW);
  height: var(--clueChipH);
  border-radius: 4px;
}

html[data-board-size="20"] .mono-hidden-token {
  width: var(--clueChipW);
  min-width: var(--clueChipW);
  height: var(--clueChipH);
  border-radius: 4px;
}

.puzzle-layout {
  display: grid;
  grid-template-columns: var(--rowClue) max-content;
  grid-template-rows: var(--colClue) max-content;
  width: max-content;
  align-items: end;
  justify-items: end;
}

.corner {
  width: var(--rowClue);
  height: var(--colClue);
}

.col-clues {
  display: grid;
  grid-template-columns: repeat(var(--size), var(--cell));
  height: var(--colClue);
  align-items: end;
}

.col-clue {
  width: var(--cell);
  height: var(--colClue);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  gap: 1px;
  font-size: var(--clueFont);
  font-weight: 900;
  line-height: 1;
  overflow: visible;
}

.row-clues {
  display: grid;
  grid-template-rows: repeat(var(--size), var(--cell));
  width: var(--rowClue);
}

.row-clue {
  height: var(--cell);
  width: var(--rowClue);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1px;
  padding-right: 4px;
  padding-left: 4px;
  white-space: nowrap;
  font-size: var(--clueFont);
  font-weight: 900;
  line-height: 1;
  overflow: visible;
}

.clue-token {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1px;
  flex: 0 0 auto;
}

.clue-number {
  font-size: calc(var(--clueFont) + 3px);
  font-weight: 950;
  line-height: .9;
}

.color-token {
  width: var(--clueChipW);
  min-width: var(--clueChipW);
  height: var(--clueChipH);
  border: 1px solid rgba(17, 24, 39, .28);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--clueFont);
  font-weight: 900;
  line-height: 1;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .34);
}

.row-clue .color-token,
.row-clue .mono-hidden-token {
  width: var(--rowChipW);
  min-width: var(--rowChipW);
  height: min(var(--rowChipH), calc(var(--cell) - 2px));
}

.col-clue .color-token,
.col-clue .mono-hidden-token {
  width: min(var(--colChipW), calc(var(--cell) - 2px));
  min-width: min(var(--colChipW), calc(var(--cell) - 2px));
  height: var(--colChipH);
}

.hidden-color-token,
.mono-hidden-token {
  border: 2px solid var(--ink);
  background: #fff;
  box-shadow: none;
}

.mono-hidden-token {
  width: var(--clueChipW);
  min-width: var(--clueChipW);
  height: var(--clueChipH);
  border-radius: 3px;
  display: inline-flex;
}

html[data-board-size] .row-clue .color-token,
html[data-board-size] .row-clue .mono-hidden-token {
  width: var(--rowChipW);
  min-width: var(--rowChipW);
  height: min(var(--rowChipH), calc(var(--cell) - 1px));
}

html[data-board-size] .col-clue .color-token,
html[data-board-size] .col-clue .mono-hidden-token {
  width: min(var(--colChipW), calc(var(--cell) - 1px));
  min-width: min(var(--colChipW), calc(var(--cell) - 1px));
  height: var(--colChipH);
}

html[data-board-size] .row-clue .color-token.two-digit,
html[data-board-size] .row-clue .mono-hidden-token.two-digit {
  width: min(var(--rowChipH), calc(var(--cell) - 1px));
  min-width: min(var(--rowChipH), calc(var(--cell) - 1px));
  height: min(var(--rowChipH), calc(var(--cell) - 1px));
}

.grid {
  display: grid;
  grid-template-columns: repeat(var(--size), var(--cell));
  grid-template-rows: repeat(var(--size), var(--cell));
  border-top: .5px solid rgba(31, 41, 55, .6);
  border-left: .5px solid rgba(31, 41, 55, .6);
  touch-action: none;
  user-select: none;
}

.cell {
  width: var(--cell);
  height: var(--cell);
  border-right: .5px solid rgba(31, 41, 55, .42);
  border-bottom: .5px solid rgba(31, 41, 55, .42);
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  padding: 0;
  touch-action: none;
}

.cell.prefilled {
  background: #f9fafb;
}

.cell.image-reveal {
  background-color: #fff;
  background-repeat: no-repeat;
}

.cell.image-reveal.revealed {
  background-color: transparent;
}

.cell.image-reveal.wrong-fill {
  background-image: none !important;
}

.cell svg,
.clue-token svg,
.palette svg {
  display: block;
}

.clue-token svg {
  width: var(--clueSymbol);
  height: var(--clueSymbol);
}

.cell svg {
  width: calc(var(--cell) * 0.96);
  height: calc(var(--cell) * 0.96);
}

.cell .color-token {
  width: calc(var(--cell) * 0.88);
  min-width: 0;
  height: calc(var(--cell) * 0.88);
  border-radius: 3px;
  font-size: 0;
}

.palette svg {
  width: 36px;
  height: 36px;
}

.palette .color-token {
  width: 32px;
  min-width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 0;
}

.actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-top: 14px;
}

.actions button,
dialog button {
  border: 0;
  background: var(--card);
  border-radius: 18px;
  padding: 15px 10px;
  font-size: 16px;
  font-weight: 800;
}

dialog {
  width: min(92vw, 420px);
  border: 0;
  border-radius: 22px;
  padding: 22px;
  box-shadow: 0 24px 70px rgba(17, 24, 39, .28);
}

dialog::backdrop {
  background: rgba(0,0,0,.35);
}

.clear-dialog {
  width: min(92vw, 540px);
  padding: 0;
  overflow: hidden;
  background: #fff;
}

.clear-dialog-head {
  padding: 24px 24px 18px;
  background: linear-gradient(135deg, #111827, #374151);
  color: #fff;
}

.clear-dialog-head h3 {
  margin: 3px 0 6px;
  font-size: 32px;
  letter-spacing: 0;
}

.clear-dialog-head p {
  margin: 0;
}

.clear-kicker {
  color: #FACC15;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.clear-dialog-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 16px;
}

.clear-dialog-actions button {
  border: 0;
  border-radius: 14px;
  padding: 14px 12px;
  background: var(--card);
  color: var(--ink);
  font-weight: 900;
}

.clear-dialog-actions button:first-child {
  background: var(--ink);
  color: #fff;
}

.clear-dialog-actions button:disabled {
  opacity: .45;
}

.guess-dialog {
  width: min(92vw, 460px);
}

.guess-dialog-head h3 {
  margin: 0 0 6px;
}

.guess-dialog-head p {
  margin: 0 0 14px;
  color: var(--muted);
}

.guess-choices {
  display: grid;
  gap: 10px;
  margin-bottom: 14px;
}

.guess-choices button {
  width: 100%;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 14px 16px;
  background: #fff;
  color: var(--ink);
  font-weight: 900;
}

.guess-choices button:hover {
  border-color: var(--accent);
}

.tutorial-dialog {
  width: min(92vw, 430px);
  padding: 0;
  overflow: hidden;
  background: #fff;
  color: var(--ink);
}

.tutorial-dialog::backdrop {
  background: rgba(17, 24, 39, .42);
}

.tutorial-head,
.tutorial-body,
.tutorial-actions {
  padding: 20px;
}

.tutorial-head {
  padding-bottom: 0;
}

.tutorial-head p {
  margin: 0 0 6px;
  color: #2563eb;
  font-size: 12px;
  font-weight: 900;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.tutorial-head h3,
.tutorial-body h4 {
  margin: 0;
}

.tutorial-head h3 {
  font-size: 24px;
}

.tutorial-body {
  display: grid;
  gap: 12px;
}

.tutorial-icon {
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  background: #dbeafe;
  color: #1d4ed8;
  font-size: 20px;
  font-weight: 950;
}

.tutorial-body h4 {
  font-size: 20px;
}

.tutorial-body p {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
  font-weight: 650;
}

.tutorial-dots {
  display: flex;
  gap: 7px;
}

.tutorial-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #d1d5db;
}

.tutorial-dot.active {
  width: 24px;
  background: #2563eb;
}

.tutorial-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1.3fr;
  gap: 8px;
  padding-top: 0;
}

.tutorial-actions button,
#openTutorialBtn {
  border: 0;
  border-radius: 999px;
  padding: 12px 14px;
  font-weight: 900;
}

.tutorial-actions button {
  background: #eef2ff;
  color: #111827;
}

.tutorial-actions button:last-child,
#openTutorialBtn {
  background: #111827;
  color: #fff;
}

.tutorial-actions button:disabled {
  opacity: .42;
}

@media (max-width: 480px) {
  :root {
    --rowClue: 84px;
    --colClue: 118px;
    --cell: clamp(18px, calc((100vw - var(--rowClue) - 24px) / var(--size)), 29px);
    --clueFont: 11px;
    --clueSymbol: 12px;
    --clueChipW: 18px;
    --clueChipH: 18px;
  }

  html[data-board-size="20"] {
    --rowClue: 78px;
    --colClue: 150px;
    --cell: clamp(12px, calc((100vw - var(--rowClue) - 24px) / var(--size)), 22px);
    --clueFont: 10px;
    --clueSymbol: 12px;
    --clueChipW: 17px;
    --clueChipH: 17px;
  }

  .app {
    max-width: none;
    width: 100%;
    padding: 8px;
    overflow-x: hidden;
  }

  .header {
    margin-bottom: 8px;
  }

  body:has(#gameView:not(.hidden)) .header {
    display: none;
  }

  h1 { font-size: 18px; }
  h2 { font-size: 20px; }
  .header p { font-size: 10px; }
  .help {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .card {
    padding: 10px 12px;
    border-radius: 16px;
  }

  .game-view .card {
    background: transparent;
    padding: 4px 4px 8px;
    text-align: center;
  }

  .game-view .card h2 {
    font-size: 24px;
    margin-bottom: 2px;
  }

  .back-button {
    padding: 7px 10px;
    font-size: 11px;
    margin-bottom: 8px;
  }

  .date,
  .desc {
    font-size: 11px;
  }

  .desc {
    display: none;
  }

  .stats {
    justify-content: center;
  }

  .stats span {
    padding: 7px 10px;
    font-size: 11px;
  }

  .palette {
    gap: 16px;
    margin: 12px 0 18px;
  }

  .palette button {
    width: 38px;
    min-width: 38px;
    height: 38px;
    min-height: 38px;
  }

  .palette svg,
  .palette .color-token {
    width: 28px;
    min-width: 28px;
    height: 28px;
  }

  .palette-eraser {
    width: 34px;
    height: 34px;
    font-size: 31px;
  }

  .board-card {
    margin-top: 0;
    padding: 0;
    border-radius: 14px;
    background: transparent;
  }

  .scroll-area {
    overflow: visible;
    padding: 4px 0;
  }

  html[data-board-size="20"] .scroll-area {
    overflow: visible;
    padding: 4px 0;
  }

  html[data-board-size="20"] .board-card {
    margin-top: 0;
  }

  html[data-board-size="20"] .clue-token .color-token,
  html[data-board-size="20"] .mono-hidden-token {
    width: var(--clueChipW);
    min-width: var(--clueChipW);
    height: var(--clueChipH);
  }

  .puzzle-layout {
    width: 100%;
    justify-content: center;
  }

  .row-clue {
    padding-left: 2px;
    padding-right: 3px;
  }

  .clue-token .color-token {
    border-radius: 4px;
    letter-spacing: 0;
  }

  html[data-board-size] .row-clue .color-token,
  html[data-board-size] .row-clue .mono-hidden-token {
    width: var(--rowChipW);
    min-width: var(--rowChipW);
    height: min(var(--rowChipH), calc(var(--cell) - 1px));
  }

  html[data-board-size] .col-clue .color-token,
  html[data-board-size] .col-clue .mono-hidden-token {
    width: min(var(--colChipW), calc(var(--cell) - 1px));
    min-width: min(var(--colChipW), calc(var(--cell) - 1px));
    height: var(--colChipH);
  }

  html[data-board-size] .row-clue .color-token.two-digit,
  html[data-board-size] .row-clue .mono-hidden-token.two-digit {
    width: min(var(--rowChipH), calc(var(--cell) - 1px));
    min-width: min(var(--rowChipH), calc(var(--cell) - 1px));
    height: min(var(--rowChipH), calc(var(--cell) - 1px));
  }

  .actions {
    gap: 7px;
  }

  .actions button {
    padding: 10px 8px;
    border-radius: 14px;
    font-size: 12px;
  }

  .tool-panel,
  .prompt-panel,
  .tool-output {
    grid-template-columns: 1fr;
  }
  #mapPreview,
  #linePreview {
    width: 100%;
    height: auto;
    aspect-ratio: 1;
  }
}

@media (orientation: landscape) and (max-height: 520px) {
  body:has(#gameView:not(.hidden)) {
    overflow: hidden;
  }

  body:has(#gameView:not(.hidden)) .header {
    display: none;
  }

  body:has(#gameView:not(.hidden)) .app {
    max-width: none;
    width: 100vw;
    min-height: 100dvh;
    padding: 0 4px;
  }

  .game-view:not(.hidden) {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 50px 64px;
    grid-template-rows: 100dvh;
    align-items: center;
    gap: 4px;
  }

  .game-view .card {
    grid-column: 3;
    grid-row: 1;
    display: flex;
    justify-content: center;
    align-self: start;
    padding: 6px 0 0;
  }

  .game-view .card > :not(.back-button) {
    display: none;
  }

  body.pwa-app .game-view .actions {
    grid-column: 3;
    grid-row: 1;
    display: grid;
    grid-template-columns: 1fr;
    grid-auto-rows: 38px;
    align-content: center;
    align-self: center;
    gap: 8px;
    margin: 0;
    padding: 0;
    height: 100%;
  }

  body.pwa-app .game-view .actions button {
    width: 64px;
    height: 38px;
    min-height: 38px;
    padding: 0 6px;
    border-radius: 11px;
    font-size: 11px;
    line-height: 1.05;
  }

  .game-view .back-button {
    width: 64px;
    min-height: 38px;
    padding: 0 6px;
    white-space: normal;
    line-height: 1.05;
  }

  .board-card,
  html[data-board-size="20"] .board-card {
    grid-column: 1;
    grid-row: 1;
    margin: 0;
    padding: 0;
    border-radius: 0;
    background: transparent;
  }

  .scroll-area,
  html[data-board-size="20"] .scroll-area {
    overflow: visible;
    padding: 0;
    display: flex;
    justify-content: flex-end;
    align-items: center;
  }

  body.pwa-app .puzzle-layout {
    margin: 0;
  }

  .palette,
  html[data-board-size="20"] .palette {
    grid-column: 2;
    grid-row: 1;
    flex-direction: column;
    justify-content: center;
    gap: 10px;
    margin: 0;
    align-self: center;
  }

  .palette button,
  html[data-board-size="20"] .palette button {
    width: 38px;
    min-width: 38px;
    height: 38px;
    min-height: 38px;
  }

  .palette svg,
  .palette .color-token,
  html[data-board-size="20"] .palette svg,
  html[data-board-size="20"] .palette .color-token {
    width: 28px;
    min-width: 28px;
    height: 28px;
  }

  .palette-eraser {
    width: 34px;
    height: 34px;
    font-size: 31px;
  }
}